curing cannabis in jars

How to Cure Your Cannabis Buds

After carefully cultivating your crop for months, an additional few weeks of curing is nothing. It will transform harsh and damp buds into smooth flowers loaded with taste.

  • 1. Why cure your cannabis buds?
  • 2. Factors that affect the curing process
  • 2.1. Avoid light exposure
  • 2.2. Protect your stash from heat
  • 2.3. Find the humidity sweet spot
  • 3. The best way to cure your cannabis buds
  • 3.1. Step 1
  • 3.2. Step 2
  • 3.3. Step 3
  • 3.4. Step 4
  • 3.5. Step 5
  • 1. Why cure your cannabis buds?
  • 2. Factors that affect the curing process
  • 2.1. Avoid light exposure
  • 2.2. Protect your stash from heat
  • 2.3. Find the humidity sweet spot
  • 3. The best way to cure your cannabis buds
  • 3.1. Step 1
  • 3.2. Step 2
  • 3.3. Step 3
  • 3.4. Step 4
  • 3.5. Step 5

Harvest time might seem like the final stage in the growing process, but that couldn’t be further from the truth. After you’ve harvested the fruits of your labour, it’s time for the most vital steps of them all: drying and curing.

Drying is just as it sounds—it’s the process of removing the majority of the water content from your buds. This will make them easier to handle, more resilient against mould formation, and a lot more pleasant to smoke. Some growers are happy to blaze dried buds, but if you want to take the flavour and potency of your harvest to the next level, you’ll need to cure them.


Patience is a virtue in all areas of life, and it certainly pays off when curing cannabis. Curing is a prolonged process that can take weeks to complete. It might seem like a hassle at first, but the reality is that curing will turn harsh buds into ones that offer a smooth and delicious smoke. This is because prolonged curing leads to the degradation of byproducts produced by the drying process, such as sugars. These molecules leave a particularly harsh and unpleasant taste in the mouth. Curing banishes these compounds, resulting in a buttery smooth smoke.

Curing also preserves desirable flavours. The molecules that give cannabis strains their intense and unique flavours are known as terpenes. These volatile compounds can degrade easily under high heat, so gentle drying followed by prolonged curing is the way to go for tasty buds.

Taste isn’t the only thing that curing can accomplish. The process can also enhance the high itself. THC, the active psychotropic constituent in cannabis, degrades over time into a cannabinoid known as CBN. CBN is thought to be mildly psychoactive, but is associated with different effects than THC.

Curing will also greatly enhance the shelf life of your harvest and further minimise cases of mould. If cured and stored correctly, your buds can last for a year or longer without any decline in taste or strength.

Humidity Control Pack


Before we get into exactly how to cure your cannabis buds, let’s discuss some of the factors that influence the process. This will help you gain a firm understanding of what to aim for and what to avoid.


During the curing process, you’ll need to keep your stash in a dark location. Light is one factor that can lead to the degradation of valuable molecules such as THC and terpenes. To avoid having light spoil the taste and potency of your flowers, keep your jars in a dark cupboard or box. Alternatively, storing your buds in miron glass jars, a type of glass that filters out all visible light apart from violet, will offer additional protection.


Heat will only be a substantial issue if you live in a climate where it becomes exceptionally hot. Heat is another factor that can lead to the degradation of cannabinoids, potentially reducing the potency of your buds. Be sure to keep your jars in a cool location to minimise damage and mould formation. An ideal room temperature for curing is around 21°C.


Curing is a straightforward process considering you start with properly dried buds. If your stash is too wet before curing, buds will clump together and there’s a good chance that mould will take hold. Increased moisture will also encourage anaerobic bacteria to start breaking down your stash. A telltale sign this is happening is the smell of ammonia emerging from your jars every time you open them.

On the flip side, curing bud that is too dry will create a crumbly and harsh stash that isn’t pleasant to smoke. Ideally, cannabis flowers should be dried in a room with a humidity of between 45–55%. This will result in a dry and slightly crumbly exterior and a more humid interior. Once it comes time for curing, humidity is increased slightly to an ideal reading of around 62%.


Now that we’ve discussed these vital factors, keep them in mind as you proceed to cure your stash. In reality, curing is simply a matter of opening and closing jars at the correct time. By placing your dried cannabis flowers into airtight glass mason jars, you’ll be creating an optimally controlled environment. These enclosed vessels allow humidity from within the flowers to rehydrate the exterior, without buds becoming overly wet. The end goal is a stash that smokes smooth and offers superior tastes.


To begin the process, you’ll need to prepare your flowers accordingly. If you dried your buds individually, you’re good to go. If you elected to dry them by the branch, then you’ll need to get trimming. Separate each bud and rid them of sugar leaves.


Next, you’ll need to place your stash into airtight containers. Mason jars provide a sturdy option and allow growers to easily monitor their buds throughout the process.

Place the buds loosely into the container and fill to 75% capacity. It’s important to leave room for air. Now is a good time to test if your stash is dry enough for curing. Give the jars a gentle shake. If your buds rattle around the glass freely, then continue with the next steps. If they begin to clump together, this is a sign the exterior is still too wet and further drying is required.


Apply the lids to your jars and place them in a cool and dark location to protect against the threats mentioned above. Ideally, place them in a cupboard or other storage room that maintains a temperature of 21°C and a relative humidity of 60–65% within the jars. The only way to accurately measure this is to add a small hygrometer (a device that measures humidity) to each jar.


During the first couple of days, you’ll need to check on your buds around twice per day. Inspect them through the glass and keep a careful eye on any mould formation. You’ll also need to open the lids for a couple of minutes each time you check to allow for fresh air exchange. Keep an eye on your hygrometers. If the reading displays 60–65% humidity, continue as normal. If things are getting too wet, leave the lids off the jars for around 3 hours to let excess moisture escape. If humidity is too low, leave the lids on for longer periods without breathing sessions. If you still don’t notice any increase in humidity, place a small humidity pack inside the affected jars.


Continue to open the jars once per day over the next 2 weeks while taking appropriate measures to maintain optimal humidity. After 3 weeks, your buds will be well cured and ready to smoke up. However, the more patient smokers out there will receive the best rewards. Your flowers will continue to increase in quality for up to 6 months of curing.

Curing is a long and tedious process for many growers, but results in a buttery smooth smoke and enhanced flavour. Learn how to do it properly here.

Here’s Everything You Need To Know About Jar Curing Cannabis

by Jen Keehn – May 9, 2018

There’s nothing quite like growing your own cannabis crop. Whether you’ve got one plant or one-hundred, drying and curing your weed is paramount to the quality of your product. Curing your crop takes time. And while it can be tempting to try to dry your buds as quickly as possible, curing them properly will ensure your harvest is the best it can possibly be.

There are several ways to cure a harvest once it has been cut down, but jar curing is one of the most popular methods amongst experienced growers. When done correctly, jar curing will make your finished product not only more potent but will make it last, keeping it fresh for months to come.

If you’re new to the growing scene, we salute you. Whether you’re growing cannabis inside or outdoors, it’s one of the most rewarding experiences ever. Here’s all you need to know about jar curing cannabis, a small but crucial step in the entire growing process.

Why Curing Your Cannabis is So Important

Proper Curing Increases THC Content

When your plant is finished growing, the production of cannabinoids doesn’t stop. When you cut your plants down, ensuring that you dry and cure them properly will ensure that THC content increases for the maximum potency of your pot.

Curing Will Enhance Aroma, Flavor, and Quality

All cannabis is not created equal. When you cure your cannabis, aroma, flavor, and quality are all enhanced, leaving you with the quality bud you worked so hard to grow. It also allows for the breakdown of sugars and any minerals that remain, ensuring you don’t get a harsh smoke that’s hard on the throat and lungs.

Curing Preserves Cannabis

Depending on how much you smoke (and how much you grew), your harvest can keep you high for a long time to come. Properly curing your cannabis can ensure it’s persevered, keeping cannabinoid content high and avoiding any issues with mold. It’s not unheard of for properly cured cannabis to last up to two years or more.

Properly Drying Your Cannabis Prior to Jar Curing

The first step of jar curing cannabis is to ensure you properly dry your buds. After cutting your plants down you’ll need to let them dry before curing. There are a couple different methods of drying your plants, depending on whether you decide to wait and trim your buds when they’re dry or trim them immediately after cutting them down when they’re wet.

Dry Trimming vs. Wet Trimming

Most experienced growers wait until plants are dry before they begin trimming, which ensures that the plants don’t dry out too quickly and the quality of the bud is maintained. Plants are hung upside down either on metal hangers or long string that is stretched tightly across the room being used for dying. Once they are dry, buds are trimmed before being placed in curing jars.

Some growers use a method known as “wet trimming”, where the fan leaves and other leaves and stems on the bud are trimmed when the plant is cut down. This method can be especially beneficial for larger crops where there is a lot of weed that needs to be trimmed. Buds that have been wet trimmed are usually placed in drying racks until they’re ready to be cured.

Drying Your Buds

Whatever method you decide on for drying your cannabis before jar curing, it’s essential to keep drying buds in a dark room (no direct sunlight) with temperatures around 65-70 degrees Fahrenheit. Humidity levels should be kept at 45-55%. A small fan should also be kept on in the room to ensure the proper circulation of air flow.

Drying cannabis takes around 5-15 days. Your buds are ready for jar curing when they’re completely dry. If your buds aren’t dry enough when you put them into the jar to cure, you risk developing mold and ruining your crop.

Knowing they’re ready can be tough for the beginner grower to gauge. Using the “snap test” (when the small branches snap instead of fold when you bend them) is a good way to know when they’re good to go. Buds should also be somewhat crisp on the outside.

What is Jar Curing?

Once your buds have properly dried and trimmed, it’s time to begin the jar curing process. Jar curing cannabis has been a grower’s go-to for decades and is one of the most popular ways to properly cure cannabis.

Wide-mouth mason jars are typically the most commonly used method of jar curing, but other glass jars with a tightly sealing lid can also be used. You can also use plastic containers, although curing in jars is typically preferred.

Some growers will use large plastic bags to cure their cannabis, but the majority of plastic bags aren’t conducive to a proper cure. Oxygen can’t flow properly in plastic. When it comes in contact with terpenes and oils present in the buds, the plastic can also break down potentially tainting your crop with plastic particles.

After all the work you did to grow your weed in the first place, making sure you cure it properly only makes sense. Glass jars are the way to go if you want a quality finished product.

4 Steps to Properly Jar Curing Cannabis

Step 1:

Dried, trimmed buds should be packed loosely in the jar until it is approximately 2/3 full. Lids should be sealed tightly, and containers placed in a cool, dark space (closets work excellent for jar curing).

Step 2:

The first week of dry curing is vital for success. You will need to open each jar at least three times each day for about 5-10 minutes. This lets your buds breathe and replaces any lost oxygen inside the jar. Opening your jars a few minutes each day during the first week also allows any moisture to escape, ensuring your buds don’t develop mold.

Step 3:

Have patience. Curing your cannabis takes time. After the first week, jars should only be opened every few days. Let them breathe for 5-10 minutes and then tightly replace the lid and return jars to their cool, dark curing space.

Step 4:

Letting your cannabis jar cure for 2-3 weeks is usually enough time to make sure your harvest is top quality. Have the patience to let your buds cure longer? Curing them for 4-6 weeks or longer can make your finished product even better.

Curing cannabis correctly is one of the most important parts of growing your own stash. Unfortunately, it’s also something often overlooked, ruining many a potentially amazing crop. When you take the time to properly jar cure cannabis, you’re ensuring you end up with a quality finished product you can be proud of.

Whether you’ve got one plant or one-hundred, drying and curing your weed is paramount to the quality of your product. Here's how to do it. ]]>